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首页> 外文期刊>Journal of Applied Polymer Science >Removal of heavy-metal ions from aqueous solution with nanochelating resins based on poly(styrene-alt-maleic anhydride)
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Removal of heavy-metal ions from aqueous solution with nanochelating resins based on poly(styrene-alt-maleic anhydride)

机译：基于聚苯乙烯-马来酸酐的纳米螯合树脂从水溶液中去除重金属离子

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摘要

Chelating resins have been considered to be suitable materials for the recovery of heavy metals in water treatments. A chelating resin based on modified poly(styrene-alt-maleic anhydride) with 2-aminopyridine was synthesized. This modified resin was further reacted with 1,2-diaminoethan or 1,3-diaminopropane in the presence of ultrasonic irradiation for the preparation of a tridimensional chelating resin on the nanoscale for the recovery of heavy metals from aqueous solutions. The adsorption behavior of Fe~(2+), Cu~(2+), Zn~(2+), and Pb~(2+) ions were investigated by the synthesis of chelating resins at various pH's. The prepared resins showed a good tendency for removing the selected metal ions from aqueous solution, even at acidic pH. Also, the prepared resins were examined for the removal of metal ions from industrial wastewater and were shown to be very efficient at adsorption in the cases of Cu~(2+), Fe~(2+), and Pb~ (2+). However; the adsorption of Zn~(2+) was lower than those of the others. The resin was characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction analysis, and differential scanning calorimetry analysis.
机译：螯合树脂被认为是在水处理中回收重金属的合适材料。合成了一种基于2-氨基吡啶改性的聚苯乙烯-马来酸酐改性的螯合树脂。在超声辐射的存在下，使该改性树脂与1,2-二氨基乙烷或1,3-二氨基丙烷进一步反应，以制备纳米级的三维螯合树脂，以从水溶液中回收重金属。通过在各种pH值下合成螯合树脂，研究了Fe〜（2 +），Cu〜（2 +），Zn〜（2+）和Pb〜（2+）离子的吸附行为。所制备的树脂即使在酸性pH下也显示出从水溶液中去除选择的金属离子的良好趋势。另外，对制得的树脂进行了工业废水中金属离子的去除研究，结果表明在Cu〜（2 +），Fe〜（2+）和Pb〜（2+）的吸附效果非常好。 。然而; Zn〜（2+）的吸附低于其他。通过傅里叶变换红外光谱，扫描电子显微镜，X射线衍射分析和差示扫描量热分析对树脂进行表征。

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